OBJECTIVES/HYPOTHESIS Assess the feasibility of using the Valsalva maneuver to visualize the cartilaginous eustachian tube lumen with computed tomography (CT) in subjects with no ear disease. STUDY DESIGN Prospective case series study. METHODS Thirty-eight consecutive patients undergoing CT of the sinuses for nose-related complaints with normal radiographic findings consented for a CT of th...

OBJECTIVE The Valsalva maneuver is recognized as an effective method to dilate the internal jugular vein (IJV). However, this maneuver cannot be performed in many cases, such as children and unconscious patients. The aim of this study was to evaluate the effectiveness of proximal IJV compression, which can easily be performed, regardless of patient cooperation. METHODS Healthy adult volunteer...

The Valsalva maneuver is a frequently used physiological test in evaluating the cardiovascular autonomic functions in human. Although a large pool of experimental data has provided substantial insights into different aspects of the mechanisms underlying the cardiovascular regulations during the Valsalva maneuver, so far a complete comprehension of these mechanisms and the interactions among the...

The cardiac output has been measured during the immediate post-Valsalva maneuver recovery period in normal subjects, patients with clinically significant mitral stenosis, and patients with alterations of the autonomic nervous system. When compared with the resting value, it was found that normal subjects had a decrease in cardiac output during the immediate post-Valsalva recovery period, while ...

While acute regurgitation is the most common valvular lesion associated with aortic sinus of Valsalva aneurysms, this report describes the pathological findings in five patients in whom primary right-sided valve dysfunction was simulated by sinus of Valsalva aneurysms. In two patients aneurysms of the noncoronary sinus projected into the right atrium at the level of the tricuspid valve and caus...

BACKGROUND Aortic dilatation and dissection are severe complications of pregnancy that may cause maternal death. The purpose of the present study was to investigate risk factors for aortic dilatation or dissection in pregnant Japanese women with Marfan syndrome. METHODS AND RESULTS A total of 28 patients with Marfan syndrome were investigated retrospectively during pregnancy and after deliver...

Background: Cervical spondylosis is a common progressive degenerative disorder of the human spine often caused by the natural aging process. Osteophytic formations contribute to biomechanical changes that result in neural and vascular compression. The spinal compression of the obliquely passing cervical nerve roots can result in possible autonomic imbalance in the body. Valsalva maneuver is a s...

OBJECTIVE This study investigated the acute hemodynamic responses to multiple sets of passive stretching exercises performed with and without the Valsalva maneuver. METHODS Fifteen healthy men aged 21 to 29 years with poor flexibility performed stretching protocols comprising 10 sets of maximal passive unilateral hip flexion, sustained for 30 seconds with equal intervals between sets. Protoco...

Pseudoaneurysm of the native sinus of Valsalva is exceedingly rare. We present a case of a 32-year-old male who was referred to the hospital after he had been symptomatic for 1.5 years. Transoesophageal echocardiography and computed tomography illustrated a pseudoaneurysm arising from the non-coronary sinus of Valsalva. A prompt operation was performed upon admission, and the patient recovered.